use async_trait::async_trait;
use domain::{DomainError, SongSearchPort, SongSummary, SortField, SortOrder};

use crate::repository::SqliteSongRepository;
use crate::row::{SongRow, row_to_summary, sort_clause};

#[async_trait]
impl SongSearchPort for SqliteSongRepository {
    async fn search(
        &self,
        query: &str,
        sort: SortField,
        order: SortOrder,
    ) -> Result<Vec<SongSummary>, DomainError> {
        let escaped = query
            .replace('\\', "\\\\")
            .replace('%', "\\%")
            .replace('_', "\\_");
        let pattern = format!("%{}%", escaped);
        let sql = format!(
            "SELECT id, title, artist, original_key, preview_chords, body FROM songs \
             WHERE (title LIKE ? ESCAPE '\\' OR artist LIKE ? ESCAPE '\\') {}",
            sort_clause(sort, order)
        );
        let rows = sqlx::query_as::<_, SongRow>(&sql)
            .bind(&pattern)
            .bind(&pattern)
            .fetch_all(&self.pool)
            .await
            .map_err(|e| DomainError::InfrastructureError(e.to_string()))?;

        rows.into_iter().map(row_to_summary).collect()
    }
}